Don't forget the case of the guy who got a DWI while *walking* his bicycle *in his front yard* in Ohio.
Texas DWI law explicitly says that it only applies to motor vehicles --
Sec. 49.04. DRIVING WHILE INTOXICATED. (a) A person commits an offense if the person is intoxicated while operating a motor vehicle in a public place.
... which is reasonable enough, but but then veers into la-la land --
TITLE 10. OFFENSES AGAINST PUBLIC HEALTH, SAFETY, AND MORALS CHAPTER 49. INTOXICATION AND ALCOHOLIC BEVERAGE OFFENSES
Sec. 49.01. DEFINITIONS. In this chapter:
...
(3) "Motor vehicle" has the meaning assigned by Section 32.34(a).
Sec. 32.34. FRAUDULENT TRANSFER OF A MOTOR VEHICLE. (a) In this section: (2) "Motor vehicle" means a device in, on, or by which a person or property is or may be transported or drawn on a highway, except a device used exclusively on stationary rails or tracks.
... so for DWI purposes, a bicycle is a
motor vehicle and you can get a DWI while riding a bicycle. (
The two cowboys arrested for DWI while riding a horse had the charges reduced, as a horse was deemed not to be a device.)
That said, the police usually just give drunken cyclists a public intoxication charge rather than a DWI, at least in Austin. So there's that.